Opuntia caespitosa Raf. ex Ser., 1830 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Plantae phylum Tracheophyta class Magnoliopsida order Caryophyllales family Cactaceae genus Opuntia species Opuntia humifusa Name Homonyms Opuntia caespitosa Poepp. Opuntia caespitosa Raf.